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For non-equilibrium systems in a steady state we present two necessary and sufficient conditions for the emergence of $q$-canonical ensembles, also known as Tsallis statistics. These conditions are invariance requirements over the…

统计力学 · 物理学 2019-08-23 Sergio Davis , Gonzalo Gutiérrez

Superstatistics is a "statistics" of "canonical-ensemble statistics". In analogy, we consider here a similar theoretical construct, but based upon the microcanonical ensemble. The mixing parameter is not the temperature but the index q…

统计力学 · 物理学 2009-11-11 C. Vignat , A. Plastino , A. R. Plastino

The microscopic foundation of the generalized equilibrium statistical mechanics based on the Tsallis entropy is given by using the Gibbs idea of statistical ensembles of the classical and quantum mechanics. The equilibrium distribution…

统计力学 · 物理学 2007-05-23 A. S. Parvan

The non-extensive canonical ensemble theory is reconsidered with the method of Lagrange multipliers by maximizing Tsallis entropy, with the constraint that the normalized term of Tsallis' $q-$average of physical quantities, the sum $\sum…

统计力学 · 物理学 2017-07-18 Ke-Ming Shen , Ben-Wei Zhang , En-Ke Wang

Superstatistics is an elegant framework for the description of steady-state thermodynamics, mostly used for systems with long-range interactions such as plasmas. In this work, we show that the potential energy distribution of a classical…

统计力学 · 物理学 2025-03-25 Sergio Davis , Claudia Loyola , Carlos Femenías , Joaquín Peralta

The maximum entropy principle in Tsallis statistics is reformulated in the mathematical framework of the q-product, which results in the unique non self-referential q-canonical distribution. As one of the applications of the present…

统计力学 · 物理学 2009-11-11 Hiroki Suyari

Quasi-power law ensembles are discussed from the perspective of nonextensive Tsallis distributions characterized by a nonextensive parameter $q$. A number of possible sources of such distributions are presented in more detail. It is further…

统计力学 · 物理学 2023-07-19 Grzegorz Wilk , Zbigniew Włodarczyk

The original canonical ensemble formalism for the nonextensive entropy thermostatistics is reconsidered. It is shown that the unambiguous connection of the statistical mechanics with the equilibrium thermodynamics is provided if the…

统计力学 · 物理学 2009-11-11 A. S. Parvan

The nonextensive statistical ensembles are revisited for the complex systems with long-range interactions and long-range correlations. An approximation, the value of nonextensive parameter (1-q) is assumed to be very tiny, is adopted for…

统计力学 · 物理学 2020-02-26 Yahui Zheng , Jiulin Du , Linxia Liu , Huijun Kong

The framework of non-extensive statistical mechanics, proposed by Tsallis, has been used to describe a variety of systems. The non-extensive statistical mechanics is usually introduced in a formal way, using the maximization of entropy. In…

统计力学 · 物理学 2016-02-17 Julius Ruseckas

Superstatistics is a superposition of two different statistics relevant for driven nonequilibrium systems with a stationary state and intensive parameter fluctuations. It contains Tsallis statistics as a special case. After briefly…

统计力学 · 物理学 2009-11-10 Christian Beck

Traditionally the exponential canonical distributions of Gibbsian statistical mechanics are given theoretical justification in at least four different ways: steepest descent method, counting method, Khinchin's method based on te central…

统计力学 · 物理学 2007-05-23 A. K. Rajagopal , Sumiyoshi Abe

Superstatistics describes statistical systems that behave like superpositions of different inverse temperatures $\beta$, so that the probability distribution is $p(\epsilon_i) \propto \int_{0}^{\infty} f(\beta) e^{-\beta \epsilon_i}d\beta$,…

统计力学 · 物理学 2016-10-03 Rudolf Hanel , Stefan Thurner , Murray Gell-Mann

We show that within classical statistical mechanics without taking the thermodynamic limit, the most general Boltzmann factor for the canonical ensemble is a q-exponential function. The only assumption here is that microcanonical…

统计力学 · 物理学 2009-11-11 Rudolf Hanel , Stefan Thurner

We show that within classical statistical mechanics it is possible to naturally derive power law distributions which are of Tsallis type. The only assumption is that microcanonical distributions have to be separable from of the total system…

统计力学 · 物理学 2009-11-10 Rudolf Hanel , Stefan Thurner

The non-extensive statistical mechanics has been used to describe a variety of complex systems. The maximization of entropy, often used to introduce the non-extensive statistical mechanics, is a formal procedure and does not easily leads to…

统计力学 · 物理学 2016-02-22 Julius Ruseckas

We deal with a generalized statistical description of nonequilibrium complex systems based on least biased distributions given some prior information. A maximum entropy principle is introduced that allows for the determination of the…

统计力学 · 物理学 2009-11-13 Erik Van der Straeten , Christian Beck

We investigate the limiting cases of Tsallis statistics. The viewpoint adopted is not the standard information-theoretic one, where one derives the distribution from a given measure of information. Instead the mechanical approach recently…

统计力学 · 物理学 2007-06-22 Michele Campisi

A multicanonical formalism is introduced to describe statistical equilibrium of complex systems exhibiting a hierarchy of time and length scales, where the hierarchical structure is described as a set of nested "internal heat reservoirs"…

统计力学 · 物理学 2012-11-15 Domingos S. P. Salazar , Giovani L. Vasconcelos

We introduce a stability criterion for quantum statistical ensembles describing macroscopic systems. An ensemble is called "stable" when a small number of local measurements cannot significantly modify the probability distribution of the…

量子物理 · 物理学 2016-12-20 Walter Hahn , Boris V. Fine
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